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Dead time compensation of current controlled inverter using space vector modulation method

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3 Author(s)
Won Seok Oh ; Dept. of Electr. Eng., Yuhan Junior Coll., Puchon, South Korea ; Yong Tae Kim ; Hee-jun Kim

The switching dead time avoiding a bridge leg short circuit in a PWM voltage source inverter produces distortions of the controlling inverter output performance such as current waveform, voltage vector, and torque. In this paper, the influence of dead time is investigated. The on-line space voltage vector modulation method is used for a current controller. It is possible to compensate dead time by space voltage vector modulation which generates additional pulse compensating voltage distortion caused by dead time. In addition, a narrow pulse which is generally neglected can be compensated. All the algorithms, including field-oriented control are performed by one chip microprocessor 80C196MC and DSP TMS320C31. Experimental results prove that the proposed scheme provides a good inverter output performance

Published in:

Power Electronics and Drive Systems, 1995., Proceedings of 1995 International Conference on

Date of Conference:

21-24 Feb 1995